Cadmium sulfide/copper sulfide heterojunction cell research. Final report, February 26, 1979-May 31, 1980
Several all-sputter-deposited Cu/sub 2/S/CdS cells have been prepared to date with J/sub SC/ approx. = 3 mA/cm/sup 2/ under simulated AM 1 illumination. The best AM 1 conversion efficiency obtained is 0.6%. This is typical of sputtered CdS in Cu/sub 2/S/CdS cells investigated to date. The sputtered Cu/sub 2/S appears to be satisfactory for solar cell applications. Present evidence indicates that the poor conversion efficiency is due to a low-junction electric field intensity on the CdS side of the heterojunction. A multilayedr CdS structure has been developed which may allow the tailoring of the junction electric field intensity to a selected high value to obtain high-junction collection efficiency. Hybrid process cells consisting of sputter-deposited CdS with conventional dry processed Cu/sub 2/S were also prepared. The best of these cells exhibited a short-circuit current density of 6.9 mA/cm/sup 2/ and a conversion efficiency of 1.18%.
- Research Organization:
- Lockheed Missiles and Space Co., Palo Alto, CA (USA). Lockheed Palo Alto Research Lab.
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 5116352
- Report Number(s):
- LMSC-D-766341
- Country of Publication:
- United States
- Language:
- English
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Thu Jan 31 23:00:00 EST 1980
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Related Subjects
14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SULFIDES
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
FILMS
INORGANIC PHOSPHORS
PERFORMANCE
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRAL RESPONSE
SPUTTERING
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SULFIDES
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
FILMS
INORGANIC PHOSPHORS
PERFORMANCE
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRAL RESPONSE
SPUTTERING
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS